$\sin\left(2\pi\right)+\cos\left(2\pi\right)$
$2x^2+6+36$
$\sin\left(x\right)\cdot cos\left(x\right)=0$
$\frac{dy}{dx}+2x^2y=0$
$\left(1-\sin\left(a\right)^2\right)\sec^4\left(a\right)$
$49y^2+28yz+4z^2$
$\left(-1.01\right)^2-5\left(-1.01\right)$
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